6 V
SERIES VBC PNEUMATIC CYLINDER ACTUATORS
Metso`s Neles series VBC actuators are developed for linear valves. The VBC double acting cylinder type actuators are designed for use in both modulating control and on-off service. They provideheavy duty and reliable operation and are well suited for many different kind of applications. The high performance internal coating resists wear and corrosion and the replaceable inner parts guarantee a long life cycle.When "stay put" failure mode is required, a double acting actuator with lock up valve is the correct choice. If another failure mode is required, a double acting actuator with transfer valve and a volume tank should be selected. The series VBC pneumatic cylinder actuators offer a built-in volume chamber or independent volume tank to provide failure in either the open or closed position. The built-in volume chamber provides minimum one time stroking when the instrument air fails.
Construction□ Heavy duty actuator designed for linear modulating
control and on/off applications.□ Heavy duty piston rod and cylinder are guided by anti-
corrosive cylinder with self lubricating piston sealwhich ensures efficient operation and improves thetransfer of energy to the valve stem.
□ The actuators incorporate three stages of internal andexternal corrosion resistance coating against severeweather, chemical and petroleum environments.
□ Optional handwheel for manual operation.□ Optional volume tank or built-in volume chamber.
Simple and cost effectiveA specially designed piston and cylinder in the main actu-ator drive module ensures simple and accurate alignmentof modules when assembling the actuator or performingmaintenance.
High-and-low temperature constructionThe standard unit can be used in temperatures up to 70 °C(158 °F). High temperature construction is available fortemperatures up to 120 °C (248 °F). The standard unit canbe used down to -20 °C (-4 °F). A low temperature designis available for -40° to +70 °C (-40° to 158 °F ), arctic serviceplease refer type coding.
BC 20 EN • 11
High cycle option For applications where very fast and high sequencyoperation is required.
ATEX compatibilityActuator construction ATEX approved.
Oversized cylinder optionsThe oversized cylinders (VBC 60, 75, 602, 752) are usedwhenever the supply pressure is limited, thus the actua-tors can achieve the required torques with a lower supplypressure level.
Accessories and control devicesA variety of accessories are available including Neles posi-tioners and limit switches, solenoid valves, transducers,relays, boosters and volume tanks and built-in volumechambers etc.
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VBC Cylinder actuators design details
VBC Specifications
Note:1. Maximum stroke: Available to extend according to the required specifications.2. The volume is based on above maximum stroke.3. The thrust values are not included other considerable factors.
VBC Stroking times
Note:1. Mounted with ND 9200 smart positioners and Air set only2. Case-1: when applied B72G-2AS-980 Air set
Case-2: when applied YT-200BN210 Air set3. Air supply pressure: 6.0 barg4. Stroking time accuracy: ± 10 %
VBC Temperature ranges
Note:1. Temperature: Ambient temperature2. Type code reference: Please see in page 13 (materials).3. Other low temperature range: Please contact Metso
VBC Air supply connections
Note:1. Maximum supply pressure: 10 bar / 145 psi
Actuator size
Piston dia.
Stem dia.
Effect Area VolumeActuator stem
size (Φ)Maximum
stroke
Thrust at Pressure Max. allowable pressurePressure Thrust
(mm) (mm) cm2 inch2 dm3 inch3 mm inch mm inch bar psi N lbs bar psi
#32 315 40 767 119 9.2 561.5 40 1.6 120 4.72
4 58 29136 6550
10 145
6 86 43704 9825
8.5 121 61915 13919
#40 400 50 1237 192 22.3 1358.8 55 2.2 180 7.09
4 58 47006 10567
6 86 70509 15851
8.5 121 99888 22456
#50 500 50 1944 301 35.0 2135.2 55 2.2 180 7.09
4 58 73867 16606
6 86 110800 24909
8.5 121 156967 35288
OTHER SIZES Contact Metso
SizeStroke (mm)
ND ModelStroking time(Sec.)
Load Vent Load Vent
# 32
60 ND 9206 6 7 8 9
80 ND 9206 8 8 10 10
100 ND 9206 10 10 12 12
# 40
80 ND 9206 8 10 11 12
100 ND 9206 10 11 12 13
120 ND 9206 11 12 14 15
# 50
100 ND 9206 13 13 16 16
120 ND 9206 15 14 18 18
140 ND 9206 17 16 20 19
# 60
120 ND 9206 18 16 22 22
140 ND 9206 21 19 26 24
180 ND 9206 25 21 30 28
# 70
140 ND 9206 20 19 29 24
180 ND 9206 24 22 34 28
240 ND 9206 28 27 40 36
# 80
180 ND 9206 31 30 42 38
240 ND 9206 35 31 48 42
280 ND 9206 39 34 54 46
Description Standard VBC High. temp Low. temp. Arctic
Temp. range -20 °C to 70 °C
-20 °C to 120 °C
-40 °C to 70 °C
-55 °C to 70 °C
Type code ref. (sign 8) A H L S
Standard 3/4" NPT for VBC #30, #401" NPT for VBC #50
Optional Contact Metso
TECHNICAL BULLETIN 11/18
S E R I E S V B C P N E U M A T I C C Y L I N D E R A C T U A T O R S6 V B C 2 0 E N
VBC, standard parts and materials
PARTS & MATERIALS
ITEM Q'ty Description Material Spare Remark1 1 YOKE ASTM A216 gr.WCB
1A 8 HEXAGON SCREW ISO 3506 A2-701B 8 WASHER AISI 3041C 8 SPRING WASHER AISI 3042 1 SLIDE BEARING BRONZE
2A 1 RETAINER RING DIN 17222-C67 VBC 323 1 COVER PLATE AISI 304 VBC 40,50
3A 4 HEXAGON SCREW ISO 3506 A2-70/80 VBC 40, 506 1 CYLINDER BASE EN 1563-GJS-400-158 1 CYLINDER PIPE EN 1706 G-Si10Mg+ANODIZED9 1 PISTON EN 1561-GJL-200
10 1 PISTON ROD PISTON ROD STEEL+HCr15 1 HEXAGON NUT ISO 3506 A2-7016 1 O-RING NITRILE, NBR Cat 1
16A 1 O-RING NITRILE, NBR Cat 1 VBC 5018 1 O-RING NITRILE, NBR Cat 1
18B 2 KEY AISI 304+HCr18C 4 SOCKET HEAD SCREW ISO 3506 A2-7019 2 O-RING NITRILE, NBR Cat 124 3 PISTON RING UHMWPE VBC 50-4ea26 1 LIMIT SCREW ISO 3506 A2-7031 10 HEXAGON SCREW ISO 3506 A2-70 VBC 32
31 2 STUD ISO 3506 A2-70 VBC 326 STUD EN 10083-1.7218+ZINC VBC 40, 50
33A 1 O-RING NITRILE, NBR Cat 1 VBC 40, 5039 1 ID PLATE POLYESTER44 1 CYLINDER END EN 1563-GJS-400-15
44A 1 WARNING PLATE POLYESTER45 2 HEXAGON NUT ISO 3506 A2-70 VBC 3245 6 HEXAGON NUT SS STEEL or CARBON STEEL+ZINC VBC 40, 5046 6 WASHER CARBON STEEL+ZINC VBC 40, 50
48 1GEAR BOX
(VBC 32: SBWG-02MT)(VBC 40, 50: SBWG-03MT)
JIS G4051-S45CASTM A53PLASTIC
DUCTILE IRON81 1 GEAR BOX COVER ASTM A105
81B 8 HEXAGON SCREW ISO 3506 A2-7081C 8 WASHER AISI 30481D 8 SPRING WASHER AISI 30481E 8 HEXAGON SCREW ISO 3506 A2-7081F 8 WASHER AISI 30481G 8 SPRING WASHER AISI 30488 1 LIMITER AISI 304
88A 4 HEXAGON SCREW ISO 3506 A2-7088B 4 WASHER AISI 30488C 4 SPRING WASHER AISI 30490 1 GEAR PIPE AISI 316L93 1 PIN A564 gr.630 H110094 1 TAPER CHAIN STAINLESS STEEL
94C 1 SPLIT PIN CARBON STEEL+ZINC95 1 HOLDER AISI 304
95A 2 HEXAGON SCREW DIN 267 PART 11 A2-7095B 2 WASHER AISI 30499 2 LIFTING EYE NUT CARBON STEEL
81E
81G
81F
81
6
95B
95A
95
94
94C
93
without handwheel with handwheel
VBC 32
DETAIL 'A'
10
24
18
9
15
18C
18B
90
39
8
19
44
44A
33A
31
26
99
1
1A
1C
1B
88A
88C
88B
88
48
81B
81D
81C
'A'
VBC 40
VBC 50
16
3A
3
16A
2
16
2
3
3A
16
2
2A
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6 V B C 2 0 E N
VBC cylinder actuator dimensions
(Unit: mm)
(Unit: inch)
(Unit: mm)
(Unit: inch)
A
B
ØDE
G
F
A
A SECTION A-A
ØC
A
A SECTION A-A
A
ØC
ØDE
B
G
F
Size Stroke A B C D E F GWeight
(Kg)
VBC32 40-120 153 769 315 40 M33X2.0 3/4" NPT 392 96
VBC40 40-180 185 1054 400 50 M33X2.0 3/4" NPT 499 190
VBC50 40-180 185 1066 500 50 M33X2.0 1" NPT 610 297
Size Stroke A B C D E F GWeight
(lbs)
VBC32 1.5-4.7 6.1 30.8 12.6 1.6 M33X2.0 3/4" NPT 15.7 211
VBC40 1.5-7.0 7.4 42.2 16.0 2.0 M33X2.0 3/4" NPT 20.0 418
VBC50 1.5-7.0 7.4 42.6 20.0 2.0 M33X2.0 1" NPT 24.4 653
Size Stroke A B C D E F GWeight
(Kg)
VBC32 40~120 155 1090 315 40 M33X2.0 3/4" NPT 392 155
VBC40 40~180 178 1405 400 50 M33X2.0 3/4" NPT 499 275
VBC50 40~180 178 1415 500 50 M33X2.0 1" NPT 610 592
Size Stroke A B C D E F GWeight
(lbs)
VBC32 1.5-4.7 6.2 43.6 12.6 1.6 M33X2.0 3/4" NPT 15.7 341
VBC40 1.5-7.0 7.1 56.2 16 2 M33X2.0 3/4" NPT 20.0 605
VBC50 1.5-7.0 7.1 56.6 20 2 M33X2.0 1" NPT 24.4 1302.4
TECHNICAL BULLETIN 11/18
S E R I E S V B C P N E U M A T I C C Y L I N D E R A C T U A T O R S6 V B C 2 0 E N
HOW TO ORDERPneumatic Cylinder Actuator, Linear Type, Series VB
ACTUATOR CONSTRUCTIONS
MATERIALS
OTHERS
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
VB C 32 X 080 A E A K A X D X A
1. ACTUATOR SERIES
VB Pneumatic cylinder actuator, linear type
2. FUNCTION CODE
C Double acting (Springless)
3.ACTUATOR SIZE
Cylinder inner diameter
32 Ø315 mm
40 Ø400 mm
50 Ø500 mm
4. SPRING RANGE
X Not applicable
5.STROKE
VB_32 VB_40 VB_50
040 IQI IQI IQI
050 IQI IQI IQI
060 STD IQI IQI
070 STD STD STD
080 STD STD STD
090 IQI IQI IQI
100 IQI IQI IQI
120 STD STD STD
140 IQI STD STD
160 IQI STD STD
180 IQI STD STD
YYY Contact Metso for special stroke
6. CYLINDER MATERIAL
A Aluminium
Optional cylinder material
S Carbon steel + HCr (Offshore)
7. PISTON MATERIAL
E EN 1561-GJL-200
Optional piston material
S EN 1561-GJL-400 (Arctic version)
8.SEAL MATERIAL
Material Description
A Nitrile rubber General, -20 to 70 °C
Optional seal material
H Viton (Fluorocarbon rubber) -20…+120 °C
L ECO (Epiclohydrin rubber) -40…+70 °C
S Arctic version -55…+70 °C
9. BOLTING MATERIAL
K SS for VB_32, CS+Zinc plating for VB_40/50
Optional bolting material
A CS+Zinc plating for steel cylinder (Offshore)
10. POSITION LIMITATION
A General construction
11. EXTERNAL OVERRIDE OPTION
X Not applicable
A Handwheel, side mounted
Y Special mounting side or special H/W construction
12.AIR SUPPLY CONNECTION
Connection size Actuator size
D 3/4" NPT VB_32/40
E 1" NPT VB_50
13. OPTIONS
X Not applicable
Y Special
14. MODEL CODE
A Original model
TECHNICAL BULLETIN 11/18 5
Metso Corporation Töölönlahdenkatu 2, PO Box 1220, 00100 Helsinki, FinlandTel. +358 20 484 100http://contact.metso.com/
Metso Flow Control Inc.Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland.Tel. +358 20 483 150. Fax +358 20 483 151
www.metso.com/valves
Subject to change without prior notice. Product names in thisbulletin are all trademarks of Metso Flow Control Inc.